ExceptionEliminating.java

package org.nohope;

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OperationsPerInvocation;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.infra.Blackhole;

import java.io.IOException;
import java.util.concurrent.TimeUnit;

/**
 */
@BenchmarkMode({Mode.Throughput, Mode.AverageTime})
public class ExceptionEliminating {
    @Benchmark
    @OperationsPerInvocation(10000)
    @OutputTimeUnit(TimeUnit.MICROSECONDS)
    public void checkThowEliminating(Blackhole blackhole) throws IOException {
        testTryCatch(blackhole);
    }

    public void testTryCatch(Blackhole blackhole) throws IOException {
        for (int i = 0; i < 2; i++) {
            try {
                doSomeIO(blackhole, i);
            } catch (IOException e) {
                throw e;
            }
        }
    }

    public void doSomeIO(Blackhole blackhole, int i) throws IOException {
        if (i < 0) {
            throw new IOException();
        }
        blackhole.consume(i);
    }
}